Fountain brush



July 11, 1933, 5 E WALLACE 1,918,069 v FOUNTAIN BRUSH Filed June 8, 1952P F q 5&4 [1%7/226 mw M ATTORNEY Patented July 11, 1933 PATENT orrlcsSADYE E. WALLACE, OI BROOKLYN, NEW YORK FOUNTAIN BRUSH Application filedJune a, 1982. Serial m. e15,97e.

The invention is an improvement in fountain toothbrushes of the typehaving a reservoir in the handle in which a plunger in the reservoir maybe readily connected or disconnected to a rod by which it may beoperated from the exterior of the handle, and the rod may be used forsealing the opening thru which the contents may be ejected, and also inwhich the contents are ejected thru an opening surrounded by bristles sothat they may be supplied to any part of the brush desired.

The object of the invention is to provide a fountain toothbrush in whichthe opening thru which'the substance is fed to the brush ma be sealed.

nether object of the invention is to pro-- vide a fountain toothbrush inwhich a substance may be fed thru a tubular bristle to any desired partof the brush.

Another object of the invention is to provide a fountain brush having areservoir in the handle and a plunger in the reservoir, in which theplunger may readily be connected or disconnected to a rod by which itmay be operated.

A further object of the invention is to provide a fountain toothbrushhaving a reservoir in the handle in which either end of the handle maybe opened.

A still further object of the invention is to provide a fountaintoothbrush having a reservoir in the handle in which the brush is heldto the handle by a threaded sleeve similar to the threaded nipple of apaste tube so that the brush may be removed and the paste tube screwedinto the same opening to fill the reservoir in the handle.

And a still further object of the invention is to provide a fountaintoothbrush having a reservoir in the handle and positive means forsealing the opening between the reservoir and brush, which is of asimple and economical construction.

With these ends in view the invention embodies a fountain toothbrushhaving a reservoir in the handle and an opening from the reservoir tothe brush, and a plunger in the reservoir by which asubstance thereinmay be forced into the brush, in which the plunger may readily beconnected ordisconnected to a rod by which it may be operated from theexterior of the brush.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawing wherein igure1 is a view showing a toothbrush with part of the handle broken awayshowing the brush in the closed position and the piston at the end ofthe reservoir, or in the empty position.

Figure 2 is a view showing the method of filling the handle of thetoothbrush.

Figure 3 is a View showing the toothbrush in the closed osition.

Figure 4 is a detail showing a cross section thru the tubular bristlesthru which the substance is supplied to the brush.

In the drawing thedevice is shown as it would be made and it will benoted that the brush and handle may be of any type, shape or deslgn. Thehandle is formed with a reservoir and a small opening leads from thereservoir to the brush, and a plunger forces material thru the openingto the brush. The plunger is mounted on a rod and the end 25 of the rod,which is indicated by the numeral 26, is extended to form a closure forand to seal the opening-27 thru which the material maybe forced to the.bristles of the brush 28 thru the tubular sleeve 29 formed inside of thebristles 30 which may be cemented to the outer surface of the sleeve 29and held by a band 31, as shown 1n Figure 4. It will be noted that thistubular bristle, or group of bristles, may be formed in any manner,maybe of any shape or design and may be located at any position in thebrush, instead of in the center, as shown in Figure 1. In the designshown in Figure 1 the'handle is formed with a tubular casing 32 having ahead 33 at one end in the center of which is a. threaded opening 34c sothat the threaded nipple ofla paste tube "mav'bescrewed therein to fillthe handle. The

4 brush is held in a base 35 having a threaded shank 36 that may bescrewed into the threads of the opening 34 and inside of the head is anopening 37 having an enlarged portion 38 extending from a point 39 tothe outer end of the shank 36 'and it will be noted that threads 40 onthe rod 26 may pass thru the opening 38 when the rod 26 is moved all ofthe way thru the handle so that the end 25 will seal the opening 27. Inthis position a head 41 at the outer end of the handle will be against acap 42 at the end of the handle, as shown in Figure 1,

and threads 43 on the rod will be screwed into the cap 42.- In thisdesign the handle may also be provided with an internal sleeve 44 andpins 45 and 46 may be provided on the cap 42 and plunger, which isindicated by the numeral 47, to prevent the plunger rotating when it isdesired to screw the threads 40 of the rod 26 into the plunger, with theplunger at this end of the handle. The brush may be provided with a cap48 to form a closure for the bristles, as shown in Figure 3. 1

It will be understood that the handle may also be made of any otherdescription and the parts connecting the handle to the brush may bechanged to accommodate the type of brush used.

It will be understood that other changes may be made in the devicewithout departing from the spirit of the invention. One of which changesmay be in the design or shape of the plunger, another may be in the useof other means for operating the plunger, and still another may be inthe use of other means for connecting the plunger to the operatingmeans.

The construction will be readily understood from the foregoingdescription. In use the device may be provided in either of the desi sshown and it will he noted that norma ly the rod will be placed all ofthe way thru the handle with the head 41. against the end of the handle,as shown in Figure 1, and with thehandle full of paste or the like, therod may be unscrewed from the cap 42 at the end of the handle by turn--ing thehead 41 at the end of the rod, and then drawn outward so that thethreads 40 at the opposite end of the rod will engage the plunger. Therod may then be rotated until the threads 40 thereof screw into thethreads of the plunger and then as it is forced inward it will take theplunger with it and force some of the paste into the brush at theopposite end. When a suflicient amount of paste has been. forced intothe brush the rod may be unscrewed from the plunger and then moved allof the way into the handle and secured therein by the threads inside ofthe head.

, When it is desired to refill the handle the brush is removed andapaste tube 49 screwed into the threads 34 in the head of the handle.The plunger may then be withdrawn to the opposite end, as shown inFigure 2, and as the tube is squeezed the contents thereof will passinto the interior of the handle, until the handle is filled. The pastetube may then be removed and the brush replaced by screwing it into thesame threads into which the paste tube was screwed. It will be notedthat the ends of the handle may readily be removed so that it may bereadily cleaned and sterilized. It will also be noted that by providingmeans for readily connecting and disconnecting the plunger to the rod itis possible to use the same rod to operate the plunger and seal theopening at the end of the handle, and by providing a tubular shapedbristle it is possible to supply the paste to any desired part of thebrush. It is also possible to clean the brush and reservoir by holdingthe brush in water and drawing the plunger backward and forward, as thesuction created' by the plunger will draw Water into the reservoir andthen expel it as it moves inward.

Having thus fully described the invention what I claim as new and desireto secure by Letters Patent, is 2-- 1. A fountain tooth brush comprisinga hollow handle providing a cylinder, a stem mounted axially in thecylinder and being of greater length than the cylinder and adapted toproject through the opposite ends thereof, a brush head having a shankat one end for detachable connection with the handie and provided insaid shank with a feed passage leading directly therethrough to thebrush head in axial alinement with said cylinder for receiving the endof the stem when projected through the cylinder, said feed passage andstem being relatively proportioned to completely fill the feed passageby said stem, and a plunger detachably mounted on said stem and disposedin said cylinder for operation by said stem when retracted from saidfeed passage.

2. A fountain tooth brush comprising a hollow handle providing acylinder, a brush head having a shank connected to one end of the handleand having a feed passage therein leading to the brush head in axialalinement with said cylinder, a plunger in said cylinder for-ejectingtooth paste into said shank and brush head, and a slidable stem mountedin said handle in coaxial relation with the cylinder and the feedopening of said shank, said stem being proportioned as to length anddiameter as to completely fill said feed passage in the shank and ejectaccumulations of paste normally left therein, said stem and said plungerhaving detachable connecting means whereby said stem when withdrawn fromthe shank may be connected to said plunger for operating the latter.

3. A fountain tooth brush, comprising a brush head, and a hollow handletherefor providing a cylinder for tooth paste, said head having apassage therethrough in axial alinement with the cylinder and openinginto one end of the same, a lunger in the cylinder, a stem in the cyliner having detachable engagement with the plunger for operating thelatter to eject the paste into the passage, the end of said stemproviding a second plunger for engagement in the passage when the stemis freed from the first plunger to eject the paste from the passage intothe brush head.

A fountain tooth brush, comprising a brush head and a handle therefor,said handle having a longitudinal cylinder therein for tooth paste andan'axial feed passage leading from one end of the cylinder to the thetooth paste from the passage into the brush head and prevent escape ofthe paste from the handle and maintain the passagev clear of the pastefor subsequent operation. In testimony whereof I aflix my signature.

SADYE E. WALLACE.

